The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - WA WTB Muncie granny low 4 speed FM-420

**burnem** · 11-17-2021, 12:35 PM

thanks for your response I do appreciate it, that is how a person learns. what I do know is
that in the 67 3/4 ton 4x4 they used that trans and married it to a Rockwell transfer case I have one of those, the feed back Iam getting says the 4x4 trans is different that the 2wd. one of the biggest question I have is witch number is correct some people say its a SM420 and some say its a FM420 maybe I just heard it wrong FM420.

11-17-2021, 12:35 PM	#3
burnem Registered User Join Date: Jan 2013 Location: Kent, Washington Posts: 401	Re: WTB Muncie granny low 4 speed FM-420 thanks for your response I do appreciate it, that is how a person learns. what I do know is that in the 67 3/4 ton 4x4 they used that trans and married it to a Rockwell transfer case I have one of those, the feed back Iam getting says the 4x4 trans is different that the 2wd. one of the biggest question I have is witch number is correct some people say its a SM420 and some say its a FM420 maybe I just heard it wrong FM420.